121 Assassination Classroom: Vongola Style! » AU. In which the unconventional, chaotic cast of KHR joins in and meets the youthful assassins in the unnatural settings of Class E.
Katekyo Hitman Reborn! & Assassination Classroom/暗殺教室, K+, English, Adventure, chapters: 8, words: 22k+, favs: 703, follows: 713, updated: 4/9/2018 published: 10/6/2015, Arcobaleno, Vongola 10th Generation, Nagisa S., 3-E Students
231Past Excursion » It wasn't like he'd planned to travel through time again. It was purely an accident that even Reborn couldn't have predicted. At first, it seemed like a pleasant surprise vacation, but it seemed less and less relaxing and became more stressful as time went on. The more he stayed, the more he brought waves, and the bigger the tsunami it created. AU time travel fic
Katekyo Hitman Reborn!, T, English, Adventure, chapters: 12, words: 43k+, favs: 789, follows: 1k+, updated: 1/30/2017 published: 12/3/2013, Tsuna/Tsunayoshi S., Giotto/Ieyasu S./Vongola I/Vongola Primo, Vongola 1st generation
54 The Legend of the Disciplinary Militia In which Hibari gets reborn as Sasuke's twin and takes over the world. Somewhat.
Naruto & Katekyo Hitman Reborn!, K, English, Humor, words: 2k+, favs: 987, follows: 465, 7/21/2016, Sasuke U., Itachi U., K. Hibari
36Hyper Intuition: Double-Edged Sword » Hyper Intuition, despite its name, wasn't simply intuition. It was also a heightened sensitivity to external stimuli. It was both a gift and a curse. A double-edged sword, for all its metaphorical value. But none had inherited the infamous seer-like cognizance that Giotto once had; that is, until a certain Sawada Tsunayoshi was born.
Katekyo Hitman Reborn!, T, English, chapters: 4, words: 22k+, favs: 323, follows: 402, updated: 7/18/2015 published: 3/28/2015, Tsuna/Tsunayoshi S., Vongola 10th Generation
15 I'm a Hitman! AU. Giotto was supposed to assign Reborn a mission but found out that his former tutor was out on a 6-month cruise in the Pacific Ocean with Bianchi and had instead sent a replacement. Ciaossu she said. Since when did Reborn have a daughter! Fem27xGiotto
Katekyo Hitman Reborn!, T, English, Romance, words: 10k+, favs: 337, follows: 135, 11/17/2013, Tsuna/Tsunayoshi S., Giotto/Ieyasu S./Vongola I/Vongola Primo
20 Reunion with a Blast It's been 10 years since Tsuna and co. had graduated from middle school, and now a letter had arrived to invite them to a class reunion together with a death threat addressed not for himself but for his former classmates.
Katekyo Hitman Reborn!, T, English, Humor, words: 12k+, favs: 426, follows: 165, 11/14/2013, Tsuna/Tsunayoshi S., Vongola 10th Generation